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315 verified UnitedHealthcare Doctors in Walnut, CA
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
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Availability last updated 05/21/2026
Availability last updated 05/21/2026

Dr. Eric Lee, DO

Primary Care Doctor
4.91
·76 reviews
The best service!!! - May 23, 2022 by Roman K.Click to read more
3 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in chronic diabetes + 3 more ·
Read bio
Dr. Eric Lee is a family physician and primary care doctor. He is a part of St. Jude - Family Medicine in Diamond Bar, CA. He treats a range of common illnesses and also offers consultations and check-ups as part of his services. Dr. Lee earned his medical degree from A. T. Still University. He co...Click to read more
Next available: Thu, Jun 11

Dr. Aaron Lin, DO

Primary Care Doctor
4.94
·52 reviews
My chart is a little buggy. - Jul 19, 2022 by Jeffrey J.Click to read more
3 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in lower back pain + 5 more ·
Read bio
I am committed to providing comprehensive health care for you and your family, working to achieve optimal health through a healthy lifestyle and disease prevention. I believe in caring for you when you are both sick and well. I earned my Doctor of Osteopathic Medicine degree from Rowan University an...Click to read more
Next available: Mon, Jun 15

Dr. Lilian Li, DO

Primary Care Doctor
4.60
·30 reviews
3 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Dr. Lilian Li is a family medicine physician with St. Jude Heritage Medical Group practicing in Diamond Bar, CA.Click to read more
Next available: Tue, Jun 23

Dr. Kim Ngan Ngoc Tran, DO

Primary Care Doctor
5.00
·30 reviews
3 mi · 253 S. Diamond Bar Blvd, Diamond Bar, CA 91765
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in chronic high blood pressure + 6 more ·
Read bio
Dr. Kim Tran is a board-certified Family Medicine physician. After graduating from University of California, Irvine in 2011, she went on to complete medical school at Lake Erie College of Osteopathic Medicine in Erie, PA and residency training at Sisters of Charity Hospital in Buffalo, NY, where she...Click to read more
Next available: Mon, Jun 29

Dr. Brian T Lai, DO

Primary Care Doctor
5.00
·33 reviews
- Dec 18, 2025 by Yangxi L.Click to read more
8.5 mi · 4300 Rose Dr, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Brian Lai is a board-certified Family Medicine physician who is born and raised in Southern California. He completed medical school at Western University of Health Sciences, College of Osteopathic Medicine of the Pacific in Pomona. After medical school, he completed his Family Medicine residency...Click to read more
Next available: tomorrow

Dr. Rishi Majithia, MD

Primary Care Doctor
4.81
·331 reviews
I had a good experience with Rishi. I am short on words, but I don't have a single complaint. :) - Nov 27, 2024 by Luke S.Click to read more
13 mi · 99 N San Antonio Ave, Ste 210, Upland, CA 91786
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Hello! Please review a few things when booking with me: Before booking, please make sure the location works for you. We are based out of Upland, California. We collect deductibles and copays at the time of service. If you have any questions or concerns, please call your insurance before your visi...Click to read more
Next available: today

Dr. Jorge Galdamez, MD

Primary Care Doctor
5.00
·37 reviews
What a refreshing and pleasant experience Dr Galdamez is a clear communicator and he spent time going over every important detail. Much appreciated, thank you - Feb 7, 2024 by Richard P.Click to read more
7.5 mi · 955 W Imperial Hwy, Ste 110, Brea, CA 92821
In-network · UnitedHealthcare
Accepting new patients · 25 years of experience · Highly recommended · Expertise in chronic diabetes + 3 more ·
Read bio
Dr. Jorge Galdamez is a family medicine doctor in Santa Ana, California. He earned his Doctor of Medicine degree from the University of California, San Diego School of Medicine and completed both his internship and residency at the University of California, Irvine. Dr. Galdamez has been in practice ...Click to read more
Next available: Fri, Jun 19

Dr. Mohammad Nabulsi, MD

Primary Care Doctor
4.93
·69 reviews
Professional and helpful, medium wait time for actual video appointment - Sep 7, 2022 by Brian B.Click to read more
8 mi · 1201 W Whittier Blvd, La Habra, CA 90631
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in chronic diabetes + 4 more ·
Read bio
My goal is to provide compassionate, comprehensive care by treating patients with evidence-based medicine. I am dedicated to ensuring that my patients maintain good health while addressing their preventive healthcare needs and managing active and chronic diseases across all ages. I earned my Doctor ...Click to read more
Next available: Wed, Jun 17

Dr. Andrew Thua Thang Ngo, MD

Primary Care Doctor
5.00
·30 reviews
7.5 mi · 955 W Imperial Hwy, Ste 200, Brea, CA 92821
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Andrew Ngo is a board-certified Family Medicine physician who has been practicing in Southern California for several years. He completed medical school at Saint Louis University School of Medicine before finishing his residency at PIH Health Whittier Family Medicine Residency Program. He was one...Click to read more
Next available: Fri, Jun 26

Carbon Health Urgent Care - La Habra

Urgent Care Clinic
4.90
·61 reviews
The staff was friendly and prompt. I got a last minute appointment on a Sunday evening and was seen right away. - Jun 10, 2024 by KATRINA G.Click to read more
9 mi · 1040 W Imperial Hwy, La Habra, CA 90631
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Azhar Majeed, MD, FACP

Primary Care Doctor
4.79
·135 reviews
Had a great experience with Dr. Majeed. Very knowledgable and provided great insights. I look forward to seeing him again. - Mar 12, 2025 by Akeem W.Click to read more
10.5 mi · 255 E Bonita Ave, Pomona, CA 91767
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Expertise in diabetic emergency + 9 more ·
Read bio
Serving members of the Pomona, Upland, and San Antonio communities, Dr. Azhar Majeed provides quality internal care with attention to detail, compassion, and a gifted support staff. He uses only the most up-to-date equipment to ensure accurate diagnoses and safe treatment plans. Dr. Majeed offers a...Click to read more
Next available: Thu, May 28

Carbon Health Urgent Care - Placentia

Urgent Care Clinic
4.85
·71 reviews
I would definitely recommend. Doctor was nice , it went quick. - Jan 21, 2024 by Michael B.Click to read more
10 mi · 858 N Rose Dr, Placentia, CA 92807
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Julie Navarro, DO

Primary Care Doctor
4.69
·77 reviews
Dr Navarro takes time to explain my situation and answers all of my questions. - May 8, 2025 by Michelle L.Click to read more
14 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Dr. Julie Navarro is a skilled and experienced family physician. She sees patients in person at Copa De Oro Medical Group in ...Click to read more
Next available: today

Carbon Health Urgent Care - Whittier

Urgent Care Clinic
4.94
·79 reviews
This physician was very knowledgeable about my issue. The medication prescribed were exactly what I needed. - Mar 28, 2026Click to read more
11 mi · 11806 Whittier Blvd, Whittier, CA 90601
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Howard Pyo, DO

Family Physician
4.88
·1286 reviews
Incredible bedside manner, caring, thorough, insightful, and kind. Highly recommend him. - Aug 14, 2023 by Anna S.Click to read more
10.5 mi · 2000 E Chapman Ave, Ste 100, Fullerton, CA 92831
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
DISCLAIMER: Pyo Clinic is a learning facility but patient permission is ALWAYS sought before we include residents/students in their care. If patient prefers to see only Dr. Pyo, we fully respect their choice and will not include residents or students in their care. All of our patients are GUARANTEED...Click to read more
Next available: today

Dr. Paola Ortiz, MD

Primary Care Doctor
4.57
·89 reviews
Dr. Ortiz was friendly, patient, and listened to all my concerns. I would recommend her! - Aug 20, 2025 by Alyssa G.Click to read more
14 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Please confirm your appointment within 24 hours via text or call. I earned my Doctor of Medicine from Ross University School ...Click to read more
Next available: Tue, May 26

Dr. Lauren Mamaril Wheeler, DO

Primary Care Doctor
4.88
·33 reviews
Dr Wheeler listened to my issues and did not rush through my appointment. I’m looking forward to continuing my care with her office. - Oct 2, 2025 by Renee C.Click to read more
12.5 mi · 8078 E Santa Ana Canyon Rd, Anaheim, CA 92808
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Lauren Wheeler is a board-certified family medicine physician, currently practicing in Anaheim Hills. She grew up in metropolitan Detroit, and completed medical school at Michigan State University. She finished residency at Loma Linda University, where she served as chief resident. Dr. Wheeler ...Click to read more
Next available: Tue, Jun 30

Dr. Sadia Moinuddin, MD, DABOM

Primary Care Doctor
4.72
·82 reviews
Dr. Sadia is knowledgeable, compassionate, and she took the time to listen. I highly recommend her by DPClick to read more
14 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Dr. Sadia Moinuddin, MD, FACP, DABOM, is a board-certified internal medicine physician who takes a compassionate, patient-cen...Click to read more
Next available: Wed, Jun 3

Dr. Jon Kramer, MD

Pediatrician
5.00
·31 reviews
- Nov 8, 2025 by Aries A.Click to read more
8.5 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. I love being able to help families through the joys and challenges of raising happy, healthy children. It's a remarkable thing to sign a teenager's health form for college and remember the first time you saw that...Click to read more
Next available: Thu, May 28

Dr. Cynthia Chen-Joea, DO, FAAFP, MPH

Primary Care Doctor
4.87
·147 reviews
Dr Chen was very attentive and provided insight on my concerns. I look forward to working with her regarding my health goals. - Jul 31, 2025 by Sharetta M.Click to read more
14 mi · 12052 Imperial Hwy, Ste 102, Norwalk, CA 90650
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
PLEASE CONFIRM YOUR APPOINTMENT WITHIN 24 HOURS OF YOUR BOOKING VIA TEXT OR CALL. (Your appointment might be canceled if not confirmed 24 hours before your appointment time) Dr. Cynthia Chen-Joea is a highly skilled family physician in Norwalk, CA. She offers in-person and virtual services at Copa ...Click to read more
Next available: Fri, Jun 12

Dr. Larissa Isterabadi, MD

Pediatrician
4.97
·32 reviews
8.5 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25 years of experience · Highly recommended · Excellent wait time ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. There is nothing more important to me than the health and safety of your children. As a strong advocate of vaccinations, I believe that ensuring the children who visit our office are fully vaccinated is the singl...Click to read more
Next available: Tue, Jun 2

Dr. David Joung, MD

Pediatrician
5.00
·30 reviews
8.5 mi · 4300 Rose Dr, Ste B, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. As a father of two adventurous and energetic boys, I understand the journey of parenthood, which often feels like a roller-coaster ride. When children are doing well and healthy, there is no greater joy and rew...Click to read more
Next available: Fri, Jun 5

Dr. Marienelle Banez, MD

Pediatrician
5.00
·30 reviews
8.5 mi · 4300 Rose Dr, Ste E, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended ·
Read bio
Please note that this provider only sees children and adolescents under the age of 18. There is nothing more important to me than the health and safety of your children. As a strong advocate of vaccinations, I believe that ensuring the children who visit our office are fully vaccinated is the sin...Click to read more
Next available: Thu, Jun 11

Dr. Marco Paez, MD

Gastroenterologist
4.93
·75 reviews
Doctor was courteous and explained things in detail. Very easy to work with. Highly recommended! - Jan 8, 2025 by Hongdi X.Click to read more
9 mi · 16677 E Yorba Linda Blvd, Yorba Linda, CA 92886
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in upper gi endoscopy + 1 more ·
Read bio
Dr. Marco A. Paez was born in Miami, Florida. He attended Miami-Dade College and Florida International University (FIU). He graduated with a competitive degree in Biological Sciences with a minor in Psychology. He then matriculated at Georgetown University School of Medicine in Washington, D.C. wher...Click to read more
Next available: Wed, Jun 3

Carbon Health Urgent Care - Cerritos

Urgent Care Clinic
4.81
·74 reviews
Yes,I will go back. The Provider is very nice and very professional. - Mar 1, 2026 by Wyatt D.Click to read more
15.5 mi · 13299 South St, Cerritos, CA 90703
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Carbon Health combines smart technology and modern design to make high-quality, inclusive, and personal healthcare accessible to all. Our convenient urgent care locations treat a full spectrum of health needs, including cold, COVID and flu symptoms, urinary tract infections, sinus infections, abdomi...Click to read more
Next available: today

Dr. Christina Steinhauser, DO

Gastroenterologist (Virtual)
4.97
·92 reviews
Dr Steinhauer was amazing. She was very informative answered all my questions and listened to my concerns. I highly recommend her. - Jan 16, 2025 by John B.Click to read more
Yorba Linda, CA
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Dr. Christina Steinhauser is a former Chief of Medicine and Chief of Gastroenterology at Nellis Air Force Base, a current assistant professor at the Uniformed Services University of Health Sciences, and a former assistant professor at the University of Nevada, Las Vegas. She earned her Doctor of Ost...Click to read more
Next available: Wed, Jun 10

Carbon Health Urgent Care - Eastvale

Urgent Care Clinic
4.85
·66 reviews
The experience was great. I didn’t have to wait long, and I was out right away. by Tamara L.Click to read more
16 mi · 14117 Limonite Ave, Eastvale, CA 91752
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Jeremy Joseph Feck, DO

Primary Care Doctor
5.00
·4 reviews
16.5 mi · 845 W La Veta Ave, Orange, CA 92868
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Jeremy Feck is board certified in Family Medicine. He completed medical school at Lake Erie College of Osteopathic Medicine before finishing his residency at Mercy Medical Center in Redding California. Dr. Feck’s areas of expertise and clinical areas of interest include care for patient’s of all...Click to read more
Next available: Thu, Jun 4

Dr. Vincent Pan, DO

Primary Care Doctor
4.88
·16 reviews
16.5 mi · 845 W La Veta Ave, Orange, CA 92868
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Vincent Pan is a board certified Family Medicine physician. An Orange County native, he completed medical school at Touro Nevada College of Osteopathic Medicine before finishing his residency at Loma Linda University Health. He has clinical experience in FQHC, private practice, preventative heal...Click to read more
Next available: Tue, Jun 9

Dr. Kate Erin Monahan, DO

Primary Care Doctor
5.00
·30 reviews
16 mi · 2501 E Chapman Ave, Orange, CA 92869
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Dr. Kate Monahan is an internist with St. Joseph Heritage Medical Group practicing in Orange, CAClick to read more
Next available: Tue, Jun 30

Carbon Health Urgent Care - Cypress

Urgent Care Clinic
4.80
·66 reviews
The team was helpful and provided clear information. - Nov 3, 2022 by Janine N.Click to read more
17 mi · 10165 Valley View St, Cypress, CA 90630
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Karen Kay G Alfonso, MD

Pediatrician
5.00
·1 review
10.5 mi · 15855 Pomona Rincon Rd, Chino Hills, CA 91709
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Alfonso is a board-certified pediatrician practicing for over 10 years in Orange and LA county. She received her medical degree at UC Davis School of Medicine and completed her residency training at CHOC Children’s hospital. Her favorite thing about being a pediatrician is, of course, the kids!...Click to read more
Next available: Tue, Jun 16

Dr. Wasim Raja, MD

Primary Care Doctor
4.85
·479 reviews
I will highly recommend the doctor he was friendly and polite.I will go back again - Jan 6, 2022 by Libin Tom J.Click to read more
21.5 mi · 11100 Warner Ave, Ste 110, Fountain Valley, CA 92708
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time · Expertise in sepsis + 3 more ·
Read bio
Dr. Wasim Raja is a skilled and experienced internist. He currently runs his own practice, based in Fountain Valley, CA, and holds licenses to practice in Texas, Nebraska, and Colorado. Fluency in English, Urdu, and Punjabi has made him accessible to various culturally diverse communities. Dr. Raj...Click to read more
Next available: tomorrow

Carbon Health Urgent Care - Pasadena

Urgent Care Clinic
4.69
·309 reviews
Great experience! I would definitely return to this clinic. Employees were the best! - Dec 7, 2025 by Debra M.Click to read more
18 mi · 600 E Colorado Blvd, Ste 120, Pasadena, CA 91101
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Angela Huusfeldt, APRN, RN, NP

Family Nurse Practitioner
4.69
·13 reviews
Angela was a great communicator and followed up when necessary after the appointment to confirm that I had my questions answered. The office did have me wait about 45-55 minutes after I arrived a bit late. I inputted the wrong address and called ahead that I’d be about 15 minutes late. The front d...Click to read more
13.5 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in high cholesterol ·
Read bio
Angela Huusfeldt is a Family Medicine Nurse Practitioner dedicated to providing compassionate, patient-centered care for individuals and families across all stages of life. She earned her nursing degree from San Diego State University and began her career in the Neonatal Intensive Care Unit at CHOC ...Click to read more
Next available: Tue, May 26

Carbon Health Urgent Care - Los Alamitos

Urgent Care Clinic
4.72
·67 reviews
The doctor and staff were wonderful. Very little wait time. Medication prescribed as needed. Thank you. - Jun 17, 2025 by Dina D.Click to read more
19 mi · 3851 Katella Ave, Ste 100, Los Alamitos, CA 90720
In-network · UnitedHealthcare
Accepting new patients ·
Read bio
Carbon Health combines smart technology and modern design to help make high-quality, inclusive, and personal healthcare accessible to all. With our convenient urgent care locations, we treat a full spectrum of health needs including cold, COVID and flu symptoms, urinary tract infections, sinus infec...Click to read more
Next available: today

Dr. Henry Cheng, MD

Family Physician
4.64
·117 reviews
Dr Cheng was very attentive, courteous and prompt. Would reccommend. by ARClick to read more
13.5 mi · 500 S Anaheim Hills Rd, Ste 246, Anaheim, CA 92807
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time · Expertise in chronic diabetes + 4 more ·
Read bio
Dr. Henry Cheng is a board-certified family medicine physician. He received his medical degree from the American University of the Caribbean School of Medicine and completed his family medicine residency at Mercy Medical Center in Redding, California. Outside of his practice, Dr. Cheng enjoys mount...Click to read more
Next available: Mon, Jun 1

Dr. Billy Zhang, MD

Primary Care Doctor
5.00
·30 reviews
21 mi · 13400 Jamboree Rd, Ste 200, Irvine, CA 92602
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended ·
Read bio
Dr. Billy Zhang is a board-certified Internist with an eclectic background, having trained in Philadelphia, Pennsylvania and working as a primary care provider in Brooklyn, New York. Dr. Zhang's area of interest is providing patient centered care, understanding the best way to team up and address bo...Click to read more
Next available: Fri, May 29

Dr. Karoline Wang, MD

Primary Care Doctor
4.91
·35 reviews
Friendly professional - Sep 5, 2025 by Antonio N.Click to read more
21 mi · 13400 Jamboree Rd, Ste 200, Irvine, CA 92602
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Dr. Karoline Wang is a board-certified Internal Medicine doctor. She graduated from the Medical College of Wisconsin and completed her internship and residency training in internal Medicine at the California Pacific Medical Center in San Francisco. Dr. Wang also has a Masters in Public Health (MHSC)...Click to read more
Next available: Fri, May 29

Dr. Roya Hormozdiaran, MD

Primary Care Doctor
4.84
·120 reviews
Super nice doctor!!! Really listens and understands! - Jan 9, 2026 by Randi M.Click to read more
23 mi · 62 Corporate Park, Ste 130, Irvine, CA 92606
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · 25+ years of experience · Highly recommended · Excellent wait time ·
Read bio
Welcome, and thank you for considering my practice. I’m a board-certified internal medicine physician, trained at the University of Southern California (USC), with over 20 years of experience in patient care, proudly serving the Irvine community. As a primary care physician, I specialize in weight ...Click to read more
Next available: tomorrow
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How can I find a female Primary Care Doctor in Walnut who takes UnitedHealthcare insurance?

When you search for UnitedHealthcare Doctors in Walnut on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see UnitedHealthcare Doctors in Walnut who match your preferences.

How can I find a UnitedHealthcare Primary Care Doctor in Walnut who sees patients after hours?

On Zocdoc, you can search specifically for UnitedHealthcare Doctors in Walnut with availability after 5 p.m.

How can I find a top-rated UnitedHealthcare Primary Care Doctor in Walnut?

You can use Zocdoc to find UnitedHealthcare Doctors in Walnut who are highly rated by other patients. These ratings are based on verified reviews submitted by real patients. Every time a patient completes an appointment booked on Zocdoc, they’re invited to review their experience. Each review must comply with Zocdoc’s guidelines.

How can I find a video visit with a Primary Care Doctor online in Walnut?

Doctors in Walnut on Zocdoc who see patients through online video visits will have a purple video icon on their profiles. You can also filter your search results to show only Doctors who offer video visits.

Are video visits with a Primary Care Doctor online covered by UnitedHealthcare?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Doctors in Walnut who accept UnitedHealthcare for video visits by selecting your carrier and plan from the drop-down menu at the top of the page. We recommend you check with your insurance carrier directly to confirm your coverage and out of pocket costs for video visits.

How can I find a UnitedHealthcare Primary Care Doctor in Walnut who sees patients in the morning or evening?

Zocdoc lets you search specifically for a Primary Care Doctor who has appointments available before 10:00 am, or after 5:00 pm. Just choose the special hours filter at the top of our search page.

How can I find a UnitedHealthcare Primary Care Doctor in Walnut who sees patients during the weekend?

Zocdoc let's you see real-time availability for UnitedHealthcare Doctors in Walnut. Many UnitedHealthcare Doctors offer appointments on Saturdays and Sundays.

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